Method of producing thermoplastic resin
US10955680B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2016 |
| Grant date | Mar 23, 2021 |
| Priority date | — |
| Expiry date | Jun 17, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2203/16
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides a method for producing a thermoplastic resin by reacting reactants comprising a dihydroxy compound. In this production method, the dihydroxy compound comprises a dihydroxy compound represented by the following formula (1), and at least one of a compound represented by the following formula (A), a compound represented by the following formula (B), and a compound represented by the following formula (C), wherein the total weight of the compound represented by the formula (A), the compound represented by the formula (B), and the compound represented by the formula (C) is 1,500 ppm or more, based on the weight (100 parts by weight) of the dihydroxy compound represented by the formula (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.